Finding the Fourth Proportional to 8,570.15, 12,857.15 and 3,023.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,570.15 : 12,857.15 = 3,023.54 : x
2. Step 2: Convert to fraction form
   8,570.15/12,857.15 = 3,023.54/x
3. Step 3: Cross multiply
   8,570.15x = 12,857.15 × 3,023.54
4. Step 4: Simplify right side
   8,570.15x = 38,874,147.01
5. Step 5: Solve for x
   x = 38,874,147.01/8,570.15
6. Step 6: Final answer
   x = 4,535.99